Radioactive material were said to be ingested through hay. The hay were left outside until April (the explosions were happen in March 12th, 14th, 15th.).
The farmer sold other unchecked cows already and the cows were brought to the prefectures which were very far from Fukushima.
Contaminated foods are being spread to all over the Japan like this.
Japanese government are planning to screen all the cows in this area before sipped.
Almost all Japanese are wondering why the unchecked beef from these area can be sold.